Related Questions

The loss of head at entrance in a pipe is (where v = Velocity of liquid in the pipe)
A $$\frac{{{{\text{v}}^2}}}{{2{\text{g}}}}$$
B $$\frac{{0.5{{\text{v}}^2}}}{{2{\text{g}}}}$$
C $$\frac{{0.375{{\text{v}}^2}}}{{2{\text{g}}}}$$
D $$\frac{{0.75{{\text{v}}^2}}}{{2{\text{g}}}}$$
The loss of head at exit of a pipe is -
A v2/2g
B 0.5v2/2g
C 0.375v2/2g
D 0.75v2/2g
A tank is filled by three pipes with uniform flow. The first two pipes operating simultaneously fill the tank in the same time during which the tank is filled by the third pipe alone. The second pipe fills the tank 5 hours faster than the first pipe and 4 hours slower than the third pipe. The time required by the first pipe is:
A 6 hours
B 10 hours
C 15 hours
D 30 hours
If V, U and Vr represent the absolute velocity of fluid, velocity of blade, and relative velocity of fluid, and suffix ‘I’ and ‘o’ stand for entry and exit conditions, then in a rotary machine whose degree of reaction is unity
A Vi = Vo
B Vt > Vo
C U
D V = Uo
The net positive suction head (NPSH) of a centrifugal pump is defined as the sum of the velocity head and the pressure head at the
A Discharge
B Suction
C Suction minus vapor pressure of the liquid at suction temperature
D Discharge minus vapor pressure of the liquid at the discharge temperature
The horse power transmitted through a pipe is maximum when the ratio of loss of head due to friction and total head supplied is
A $$\frac{1}{3}$$
B $$\frac{1}{4}$$
C $$\frac{1}{2}$$
D $$\frac{2}{3}$$
Velocity head on sudden enlargement in a horizontal pipe is converted into __________ head.
A Elevation
B Pressure
C Both A and B
D Neither A nor B
Pipe A alone can fill a tankin 8 hours .Pipe B can fill it in 6 hours . If both the pipes are operated and after 2 hours pipe A is closed, then the other pipe will fill the tank in.
A 6 hours
B 3 1/2 hours
C 4 hours
D 1 1/2 hours
A pipe fills a tank in P minuties and another pipe fills the tank in Q minutes. A different pipe makes the tank empty in R minutes. If all these three pipe are opened then in how many minutes the tank will be full?
A p+q-qpqr
B pq+pr-pqpqr
C pq+qr-prpqr
D pqrqr+pr-pq
A water tank with 64-gallon capacity is filled by pipe A and emptied by pipe B. If the rate of water flow through pipe A is 2 gallons per hour, how many gallons per hour should flow through pipe B so that when both pipes are open, the initially empty tank shold be full in exactly 96 hours?
A 3/8
B 4/3
C 2/3
D 8/3

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